DAY48SVR: Nws Storm Prediction Center Norman Ok

ACUS48 KWNS 240949
SWOD48
SPC AC 240948

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0348 AM CST MON DEC 24 2012

VALID 271200Z - 011200Z

...DISCUSSION...
THE MEDIUM RANGE MODELS BEGIN THE DAY 4 TO 8 PERIOD WITH AN
UPPER-LEVEL LOW OVER THE NERN STATES AND AN UPPER-LEVEL TROUGH
ACROSS THE INTERMOUNTAIN WEST. THE MODELS MOVE THE WRN US
UPPER-LEVEL TROUGH INTO THE GREAT PLAINS ON FRIDAY/DAY 5 AND INTO
THE MS VALLEY ON SATURDAY/DAY 6. AHEAD OF THIS SYSTEM...THUNDERSTORM
ACTIVITY WILL BE POSSIBLE IN THE LOWER MS VALLEY AND CNTRL GULF
COAST STATES FRIDAY THROUGH FRIDAY NIGHT AND IN THE ERN GULF COAST
STATES ON SATURDAY BUT MOISTURE RETURN AHEAD OF THE SYSTEM IS
FORECAST TO BE LIMITED. IN ADDITION...A RATHER COLD AIRMASS IS
FORECAST TO BE IN PLACE ACROSS MUCH OF THE UNITED STATES SUGGESTING
THE POTENTIAL FOR SEVERE STORMS WILL BE LOW DURING THE DAY 4 TO 8
PERIOD.

..BROYLES.. 12/24/2012

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